Pipe-coupling.



J. T. PEDERSEN.

PIPECOUPLING.

APPLICATION HLED AUG.5. I914.

ricaaei.

SEN, a citizen of thelUnit-cd States, residing- JOHANNIES TH. PEDERSEN, or New YORK, N. Y.

PIPE-COUPLING.

To all ar /tom it may concern: Be it known that I, JOHANNESYTH. FEDER- at Flushing, in the borough and county of Queens, city and State of New York, have invented an Improvement in Pipe-Couplings, of which the following is a specification. a .1 a My present invention relates to a pipe cou pling particularly adapted for'us'e-m charging gas tanks, such, for example, as are employed for carbonic acid gas in soda fountains, and like places, although, as will be understood, my improved pipe coupling is not limited to this particular use, as it may be employed for connecting pipes for any purpose whatsoever. 4

-In the use of pipe couplings heretofore commonly employed to connect gastanks and similar receptacles to supply reservoirs for-the purpose of filling tanks, several operationshavebeen necessary, as Well in making the joint as in the breaking of the same, and much unnecessary time has been expended in making and breaking the joints with thepipe couplings heretofore employed, and also there has been considerable wear on the screw threaded ends of the pipe connections from the tanks, and also on the pipe connections from the reservoir, due, as will be understood, tothe frictional contact with the members of the coupling. The object of my present invention is the provision of a pipe coupling, in the use of which buta single operation is necessary in making, as well as in breaking, the joint between the coupling and the tank to be filled, whereby there is a considerable saving in thetimeconsumed in making and break ing the joints, .and-I the construction of my improved pipe coupling is such that while the screw threadedendsoffthe pipe connections from thetank are utilized there is no appreciable .wear onythesame, as will be hereinafter more particularly described.

.In the drawing, Figure 1 is a sectional longitudinal cross section and a partial elevation of the pipe coupling made in accordance with my present invention, showing the end of the pipe connection from a'tan'k to be filled, in position to be engaged by the coupling. Fig. 2 is a plan and partial cross section of the parts of the coupling as shown in Fig. 1. Eig. 3 is a view similar to Fig. 1, showing the parts of a coupling in enga ement with the screw threaded end of t e pipe connection from a tank to be filled, Fig. ber- 12, and the base of the recess 30 in its Specification of Letters Patent.

Application filed August 5,1914. Serial no. 855,110.

Patented Dec. 7, 1915.

4L a partial plan of' the parts as shown in F1g. 3,and Fig. 5 is a partial plan of a modified form of the invention.

y reference to the drawing, it will be seen that my improved pipe coupling preferably comprises a frame having oppositely disposed members 10 and 13:, the correspond- .lng ends of which are parallel to each other. The side members 10 and 11 of the fran e are suitably connected by an intermediate member 12, which may be integral therewith or otherwise.

lVithin the parallel portions of the side memberslO and 11, I employffijaws l3 and 1 1. These jaws13 and'l l, arc-preferably pivoted to the parallelportions of the frame by pins 15 and 16,, respectively, which pass through portions of the jaws and through the side members of the frame, in which latter they are suitably secured. Each jaw member, at one end thereof, is provided with a circularly recessed and interlo-rly screw threaded portion 17 and at its opposite end with an inner inclined or tapered face 18. In this end of each jaw, also, the same is provided with a recess 19 while in the opposite end there is a recess 20. r m

Passing'through a bore provided therefor in the intermediate member 12, I employ a spindle 21. At one end, thespindle is provided with a socket 22, interiorly screw threaded to receive the threaded end 23 of I a stem. 24, which latter extends between the adjacent ends of the jaws 13 and 14- and at its extremity is provided with a handle 26, which is suitably connected thereto.

On the V stem 24, adjacent the screw threaded end 23 thereof, I employ a collar 25, the surface of which is tapered and adapted to contact with the inner inclined faces 18 of the jaw members 13 and 14, and

in order to prevent a relative turning movement between the spindle and the jaws, when the stem is turned, I prefer to provide the. socket end of the spindle with oppositely v disposed lugs 27, adapted-to extend into and slide withinthe recesses 19in the said jaws.

Other and equivalent means, however, may

be employed for this purpcse' .In orderto normally maintain the screw threaded ends of the jaws in an openposition, as shown in Fig. 1, I. also employ springs 28, each of which extends between the base of a recess 29, provided therefor in the outer surface of the intermediate memcorresponding jaw member, a portion of each of the said springs extending through the recess 20, in its corresponding jaw member.

The spindle 21 is provided centrally with a bore 31, which connects with a bore 32 in a pipe connection 33, fixed on which there is a sleeve 34 and a nipple 35, by which these parts, as well as the coupling may be connected to the screw threaded end of the pipe connection leading from a reservoir, tank or other source of supply, for the material with which the tank, or other receptacle, is to be filled by the use of the improved coupling.

engage the screw threads on the end of the pipe connection, and then the stem 22 is turned so that the conical surface of the collar 25 contacts with the inner inclined faces of the adjacentends of the jaws to spread the same, which, as will be understood, causes the jaws to swing on their pivotal points, and the screw threaded ends thereof to securely grip the screw threaded end of the pipe connection, and this revoluble movement or turning of the stem 2% also moves the spindle 21, causing the same to slide in the intermediate member 12 so as to force its end into close contact with the end of the pipe con-' nection to make a tight oint between them. Obviously, in breaking the joint, the stem 22 is turned in the opposite direction, and by the action of the s rings 28 the jaw members are automaticall released from the screw threaded end of the pipe connection. In this use of the coupling, and as will be apparent, after the end of the pipe connection 36 is secured between the screw threaded ends of the jaws and the end of the spindle brought into forcible contact with the end of the pipe connection, a valve in the pipe, secured to the nipple-35, as well as the valve 37 are opened, and then the gas, liquid, or other material, may flow from the reservoir, or other source of supply, intothe tank to be filled, passihgthrough the pipe connection 32 into the bore of the spindle 21, then into the pipe connection 36 and into the tank. It will be understood, however, that the pipe connection 36 andthe valve 37 therein, as illustrate are I only diagrammatic, for the purpose of show i'ng-the use of my improved pipe coupling,

inasmuch as the same is adapted for making connections between pipes for any purpose.

in the connection 33, in order to control the extent to which the same is open and, when necessary, to shut the same entirely ofi. In the use of the valve associated with the spindle, it will be unnecessary to employ a valve or similar device in the pipe line to which theeonnection 33 is secured by its nipple 35.

I claim as my invention:

1. A pipe coupling comprising a frame, jaws pivoted therein so as to swing into engagement with the screw threaded end of a pipe connection, a spindle having a screw threaded socket at one end. thereof, a stem having a screw threaded end in engagement with the said screw threaded socket, and means associated with the said stem for separating the said jaws at corresponding ends thereof and bringing the opposite ends into engagement with the screw threaded end of a pipe connection as the said spindle is advanced to engage the end of the pipe connection by turning the said stem.

2. A pipe coupling comprising a frame, jaws pivoted therein so to swing into engagement with the screw threaded end of a pipe connection, a spindle having a screw threaded socket at one end thereof, a stem.

having a screw threaded end in engagement with the said screw threaded socket, and a collar having a conical face adapted to engage the inner portions of the said jaws at corresponding ends thereof to spread the same and bring the opposite ends into engagement with the sides of the pipe connection while the said spindle is brought into positive engagement with the end of the pipe connection by turning the said stem.

3. A pipe coupling comprising oppositely disposed side members, an intermediate member connecting the same, jaws pivotally connected between the said side members to swing into engagement with the endof a pipe connection, and devices for simultaneously making a tight joint with the end of the pipe connection and causing the said .jaws to grip the same at opposite sides.

4. A pipe coupling comprising oppositely disposed side members, an intermediate member connecting the said side members, jaws pivotally connected in the said side members and adapted to swing into engagement with the screwthreaded end of a pipe 1 connection, a spindle movable longitudinally in the said ntermediate member, and means for simultaneously moving the said spindle to bring the same into engagement with the end of a pipe connection and swing the said jaws into engagement with the sides thereof.

tendingpartially therethrough in a longi-' tudinal direction, a pipe connected to and eXtending from one side of the said spindle and making communication with the bore therein, a valve connected to the opposite side of the said spindle and adapted to open and close communication between the said pipe and the bore in the spindle, a screw threaded socket oirone end of the spindle, a stem having a screw threaded end in engagement with the said screw threaded socket, and a collar having a conical surface secured on the said stem and adapted to engage corresponding ends of'the said jaws to separate the same and thereby close the 0pposite ends of the said jaws into engagement with'the end of a pipe connection.

14:- A, pipe coupling comprising a frame,

jaws pivotally mounted therein to swing into engagement with the screw threaded,

end of a'pipe connection, a spindle movable longitudinally in the said frame and having a bore extending partially therethrough in a longitudinal direction, a pipe connected to and extending at right angles from the said spindle, means for j preventing a relative revoluble movement between the said spindle and the frame and jaws, and devices for simultaneously swinging the said jaws and moving the spindle longitudinally to bring the former into contact-with the end of a pipe connection and the latter-to securely I grip the opposite sides thereot.

15. A pipe coupling comprising a'frame,

jaws pivotally mounted therein to swing I into engagement with the screw threade end of a pipe connection, a spindle movable longitudinally in the said frame and having a bore extending partially therethrough in a longitudinal direction, a pipe connected to and extending at right angles from thesaid spindle, means for preventing a relative revoluble movement between the said spindle and the frame and jaws, a valve also secured tovand extending from the said spindle and adapted to open and close communica tion between the said pipe and the bore H the spindle, and devices for simultaneously swinging the said jaws and moving the spindle longitudinally to bring the former into contact with the end of a pipe connection and the latter to securely grip the op-- 

